以抗震规范为准

<门式钢架轻型房屋钢结构技术规程》cecs102:2002第3.1.6条，明确规定门式刚架结构的阻尼比为0.05。
新抗规中第8.2.2条对钢结构的阻尼比也做了明确要求。
对于落地支撑的空间网格支撑建议取0.02，对于下部为混凝土框架或柱支撑的一般空间网格结构阻尼比取0.03，建议索网结构的阻尼比取0.01。

多高层取0.004。。。。

学习了！谢谢！

抗规9.2.5单层厂房取0.045~0.05

挺详细的，分析的很好，受益匪浅
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